[hpcjoe]

A friend sent me the image from page 9. The email signature. It is mine, from when I ran my company. Mid 2010s.

I'm not much worried about this specific example of information exfiltration, though I have significant concerns over how one may debug something like this for applications working with potentially more sensitive data than email signatures. Put another way, I think we are well within the infancy of this technology, and there is far more work needed before we have actually useful applications that have a concept of information security relative to their training data sets.

[Aurornis]

That's an unexpected surprise. Do you have any theories? Presumably someone posted one of your e-mails somewhere on the internet?

If you Google parts of the old signature, do you get any results?